ABSTRACT
The signals in digital logic and computer systems
are conveyed along individual electrical
conductors and also using multiple wiring
arrangements where several conductors are used
to convey signals from one place to another in
what is known as a bus system. As we will see in
Chapter 4, the number of individual bus lines
depends upon the particular bus standard
employed however signals on the individual lines,
no matter what they are used for nor how they are
organised, can exist in only two basic states: logic
0 (‘low’ or ‘off’) or logic 1 (‘high’ or ‘on’). Thus
information within a digital system is represented
in the form of a sequence of 1s and 0s known as
binary data.
